Simplified duplicating device



Nov. 19, 1946. 1. STOCKMAN 2,411,475

S IMPLIFIED DUPLICAI'ING DEVICE Filed June 2, 1945 2 SheetsSheet 1INVENTOR. Ir-v n 3 517C kmon BY 1:1"; 7. W

ATTO R A-Y.

Nov. 19, 1946.

l. STOCKMAN 2,411,475 SIMPLIFIED DUPLICATING DEVICE Filed June 2, 1945 2Sheets-Sheet 2 INVENTORL Irving S'l'ockman ATTORNEK Patented Nov. 19,1946 2,411,475 SIlWPLIFIED DUPLICATIN G DEVICE Irving Stockman, NewYork, N. Y., assignor of ghelhalf to Maurice Schoenbrun, New York, 7

Application June 2, 1945, Serial No. 597,365

13 Claims 1 This invention relates to new and useful improvements in asimplified duplicating device.

More specifically, the present invention pro-- poses. the constructionof a duplicating device characterized by having a base and a framepivotally. and movably mounted thereon, the frame having two pivotallyconnected members between whicha stencil sheet is adapted to bestretched.

Still further, it is proposed to provide a. device as aforesaid in whichthe frame can be quickly assembled and disassembled with and from thebase.

length and Width.

. For further comprehension ofthe invention,

and of the objects and advantages thereof,reference will be had to thefollowing description and accompanying drawings, and to the appendedclaims in which the various novel featuresof the invention aremorepartieularl set forth.

In the accompanying drawings forming a material part of this disclosure;

Fig. 1 is a perspective view of a device constructedin accordance withthis invention.

Fig. 2 is a section on the line 22 of Fig. 1, adjusted positions of theframe being indicated in dot-dash lines.

Fig. 3 is an enlarged section on the line 3-3 of Fig. 1, parts beingshown in full.

Fig. 4 is an enlarged perspective View of the frame of the device of thepresent invention, a portion of the base also being shown.

Fig. 5 is a section on the line 5-5 of Fig. 4.

Fig. 6 is a section on the line 6-6 of, Fig. 4.

Fig. Tis an enlarged section of a portion of the frame.

Fig. 8 is a plan view of a device constructed in accordance with amodification of this invention.

Fig. 9 is a-perspective view of a slide pad used with the device.

Fig. 10'ls a perspective view of a device constructed in accordance witha further modification of this invention.

Fig. 11 is a perspective detailed view of the slide hinge used in thidevice.

The simplified du licating device, according to thisinvention. comprisesa base I0, which may be a rectangular block of wood. It has four legs IIat its four corners. The top two legs ii are bored axially providingsockets l2. A rod l3 having legs I4, is mounted in these sockets. Thelegs extend in these sockets and are pressed upwardly by springs l2,located in the bottom of these sockets. Rod l3 thus traverses the topmargin,

Another object is to provide a device as afore of the base. Two movableguide strips H5 extend along'the sides of the top face of the base, andmay be secured at various positions by screws I5 which may slide inparallel slots I5 formed in the base it. The connection portion of rodI3 is rectangular in cross section. Two tubes: |6,.with rectangularopenings are slidably mounted on rod l3. The outer periphery of thesetubes is circular and is adaptedto engage within a sleeve L6? from eachof which extends a leg l1, and projects over the top face of the base. f

A frame I8 is disposed on the top faceof the base and connected to thelegs l1, as will. pres-y ently appear. The frame has a bottom framemember l9 the top face of which is covered by; felt 2B. A topframemember 2| is pivotally cone; nected to member I!) by hinges 22disposed at the upper end of the frame members. l9 and 2| Frame member2| has two raised tubes .23 along the top of its longitudinal sides,througheach of which extendsone ofthe legs ll. That istoj say, toassemble the frame withithe rod |3, the tubes 23 are merely slidover thelegs The, frame is then pivotally mounted on. the base to swing aboutthe tubes IS on the rod l3 andnor mally held in upwardly inclinedposition by spring. B It may also be raised and lowered parallel to thebase by movement of thellegs [4 in the. sockets |2. l

1 Frame member 2| has a side tab 24 and top and bottom tabs 25 forfacilitating the use of the frame. It is fastened at its bottom edge tothe frame member H! by snap tab 26. Scales 21 are marked along the innersides and bottom of the T frame member 2|, or if desired may beindicated along the outer margin as well. Frame members. |9 and 2| maybe made of any desirable material. Frame member 2|. due to its morecomplex con struction, is best moulded in plastic.

Frame member 2| has, fixed to its under s de, depending pins 28.. Framemember 2| is adapted.

to be. disposed on top of a sheet of stencil paper 29. and then with thestencil paper affixed thereto by means of pins 28, it is placed ontop ofthe felt to be squeezed between the two frame members l9 and 2| Pins 28pierce the stencil paper and extend into the felt, holding the stencilpaper tightly in place.

The operation of the device is as follows:

Frame member 2| is placed on a sheet of stenw cil paper and is thensecured between the frame members l9 and 2|, as aforesaid, and theframe.

H3 is slid on the legs ll of the rod l3. The frame canbe movedtransversely of the. base by movement of the tube l6 along the rod I3,and can. be

shown in Fig. 9, over the top of the stencil pa--- per. This pad willcause ink to flow through the perforations of the stencil sheet andthuswill reproduce the design of the stencil sheet on. the.

top paper of the layer of papers. beneath the:

frame 18. The pad will stretch the stencil sheet slightly the stencilsheet being firmly held by the pins 28. As soon as the top paper-hasbeen'printed, the spring l3 will swing the frame l8 upwardly on the rodl3 and the top sheet withdrawn- The frame is shown in a swung positionin Fig. 2 by the inclined d'ot d'ash figure. and in a raised position ona stack of papers by the horizontal dot-dash figure. As the papers ofthe stackvare successively printedand withdrawm the frame may be.lowered closer to the base by pressing. the legs f4 downwardly inthesockets l2; The snap fastener 26 holds the frame members together sothat the frame lt'tcan be swun'g'as. a unit to withdraw each; sheet of.paper as it is.

printed.

A device. contructed .in accordance with a modification of'thi'sinventionisxshown in Fig: '8.v

It distinguishes frornthe previous device in that the tube. I6 is madein two parts Ida. and. [6b telescoped together sothat it can be.expanded:

and. contracted in length. and in that the. frame [8" is made expandableand contractable lengthwise and. crosswise so that its length. and/orwidth can be changed; In orderv to make the frame made telescopic. Onlyframe member 21" is shown in Fig. 8 but it will be understood that framemember member 21' has its. side members" formed; of two telescoped parts2m and. 21b and its top and bottom members formed of two telescopedparts 21c and 21d, each of the partsZl'c and Zld being integral with itsadjacent side member part.

Thus the frame. I 8 can be quickly enlargedi or made small toaccommodate a larger or smaller sheet of stencil paper. Other parts ofthis device corresponding toxsimilar parts of the deviceof Fig. 1 areindicated. by like references with an accent added.

A device constructed'in accordance withv a fur"- ther modificationof'the invention is shown in Fig. 10. It distinguishes from the device ofFig. 1 in that it cannot be moved over the base but must stay in one.position. The rod .l3 has two right angle trunnions 3i, and the frame.member 2l"' has two orificed, lugs 32 in which the trunnions 31. aredisposed, hinging, the'fram I8 to the r0d' l3. The trunnions 31 extendin the same directionso that frame 18" can be quickly slidthereon orslid thereofi as desired. v 7

While I have illustrated and described the preferred embodiments of myinvention, it is to'be understood that I do not limit myself to theprecise constructions herein disclosed and the right is reserved to allchanges and modifications comingwithin the scope of the invention asdefined" in theiappended claims.

Havingthus described my invention, what I claim as new, and desire tosecure by United States Letters Patent is:

changeable in size, both the frame membersare' I9. is made similarly.Frame ment of. said. tube onsaid bar and lengthwise of said. base. bymovement of said top frame member on said tube legs, said frame membersbeing adapted to hold between them a sheet of stencil paper-having animprint to be duplicated whereby a sheet of paper disposed between saidbase and said frame may have the print of said stenc-il reproducedthereon by sliding an inking pad on top of said stencil sheet;

2. A duplicating device 'comprisinga base having' socketsat its uppercorners; a" U shaped rod having vertical legs in said sockets and ar'barconnecting said legs" and traversin'gthe uppermar ginof'said base; aslide hinge SlidflibiYaIldiGtEt ably mounted on said; bar and havingspaced straight legs extending'over said ba'se, and a frame disposed onsaid'base having two superposed hinged frame members; the top memberhaving spaced tubes along its" sides slidably mounted on said tube legswhereby said frame can be moved crosswiseof said base by movement ofsaid tube-on said bar and lengthwise-of said base by movement of saidtopframe mem-' members together. forswmg'ing as. a unit above said bar;

3. A duplicating: device comprising a base-having sockets at its-uppercorners; -'U-s1iaped? rod-f havingvertical legs slidably disposedin'said sock ets and a bar connecting said legs and traversing the uppermargin ofsaid base slide-hing eslid ably and rotatably mounted on said'barand having spaced straight legs extending over said base;

said spaced straightlegs-being held i'rr-a normally inclined position bya coilspring. engagetfi onsaid bar. and a frame disposed on'. saidi basehaving two superposed hinged frame membersgfthe top member having spacedtubes along its sides:S1id'-.-' ably mounted on saidtubelegswherebysaidiframe can be moved crosswise of: saidib'aserby movement.of said tube on said bar and: lengthwise ofsaid base by movement of saidtop framefmembers'on, said tube legs said framemembersr-being adapted tohold between them a sheet" of. stencil: paper;- having an imprint to beduplicated ;whereby-a.

- stackv of'paperdisposed: between. said base and said frame may have:the print of said: stenciL.

successively reproduced thereon by successiyely sliding: an. inking. padon: top of said stencilsheet and removing the. papers of: said.stacleene. by" on'eassaid print is-reproduced thereom-said vet-a ticallegs being pressed into said. socketsafter a.

number of sheets of paper havebeen removed:

4. A. duplicating device comprising, a; base-have. ing' sockets. at. itsupper" corners-andadjustable: guides: along its side edges fonguiding. astackiof.

. 5. papers fdisposedj on saidbase, a U--shaped rod havingfiverticallegsslidably disposed in said sockets and being held in raised position bysprings in the said-sockets and a bar connecting said legs andtraversing the upper margin of wise of said base by movement of saidtube on said bar and lengthwise of said base by movement of said topframe memberon said tube legs, said frame members being adapted to holdbetween them a sheet of stencil paper having an imprint to beduplicatedwhereby the sheets of paper of said stack may have the printof said stencil reproduced one by one thereon by successively sliding aninking pad on top of said stencil sheet, and removing the top sheet ofpaper after each sliding.

5. A duplicating device comprising a base having sockets at its uppercorners and adjustable guides along its side edges for guiding a stackof papers di posed on said base, a, U-shaped rod having vertical legsslidably disposed in said sockets and abar connecting said legs andtraversing the upper margin of said base, a slide hinge slidably androtatably mounted on said bar and having spaced straight legs extendingover said base; anda frame disposed on'said base having two superposedhinged frame members, the top member havingspaced tubes along its sidesslidably mounted on said tube legs whereby said frame can be movedcrosswise of said base by movement of said tube on said bar andlengthwise of said base by movement of said top frame member on saidtube legs, said frame members being adapted to held between them a sheetof stenci1 paper havin an imprint to be duplicated whereby the sheets ofpaper of said stack may have the print of said stencil reproduced one byone thereon by successively sliding an inkin pad on top of said stencilsheet and removing the top sheet of paper after each stamping, said topframe member having scales around a plurality of sides of its inner andouter margin for coaction with said stencil sheet.

6. A duplicating device comprising a base having sockets at its uppercorners, a U-shaped rod having vertical legs in said sockets and a barconnecting said legs and traversing the upper margin of said base, aslide hinge slidably and rotatably mounted on said bar and having spacedstraight legs extending over said base, and a frame disposed on saidbase having two superposed hinged frame members. the top member havingspaced tubes along its sides slidably mounted on said tube legs wherebysaid frame can be moved crosswise of said base by movement of said tubeon said bar and lengthwise of said base by movement of said top framemember on said tube legs, said bottom frame member having a, felt liningon its top surface, said frame members being adapted to hold betweenthem a sheet of stencil paper having an imprint to be duplicated wherebya sheet of paper disposed between said base and of said base, a slidehinge slidabl'y and rotatably mounted on said bar and having spacedstraight leg-s extending over saidbase, and a frame disposed on saidbase having two superposed hinged frame members, the top member havingspaced tubes along its sides slidably mounted on said tube legs wherebysaid frame can be moved crosswise of said baseby movement of said tubeon said bar and lengthwise of'said base by movement of said top framemember on said tube legs said bottom frame member having a felt liningon its top surface, said frame members bein adapted to hold between thema, sheet of stencil paper having an imprint to be duplicated whereby asheet of paper disposed between said base and said frame may havetheprint ofsaid stencil reproduced thereon by sliding an inking pad on topof said stencil sheet, said top frame member having depending sharppoints adapted to pierce said stencil sheet and felt for holding saidstencil sheet tightly stretched between said frames during said sliding.l

8. A duplicating device comprising a base having sockets at its uppercorners, a U-shaped rodhaving vertical legs in said sockets and a barconnecting said legs and traversing the upper margin. of said base, aslide hinge slidab y and rotatably mounted on said bar and having spacedstraight legs extending over said base, and a.

moved crosswise ofsaid base by movement of said tube on said bar andlengthwise of said base by movement of said top frame member on saidtube legs, said frame members being adapted to hold between them a sheetof stencil paper having an imprint to be duplicated whereby a sheet ofpaper disposed between said base and. said frame may have the print ofsaid stencil reproduced thereon by stamping an inking pad on top of saidstencil sheet, said first mentioned tube having two telescoped parts andsaid frame being expandable transversely and longitudinally foraccommodating different size stencils.

9. A duplicating device comprising a base havin sockets at its uppercorners, a U-shaped rod having vertical legs in said sockets and a barconnecting said legs and traversing the uper margin of said base, aslide hinge slidably and rotatably mounted on said bar and having spacedstraight legs extending over said base, and a frame disposed on saidbase having two superposed hinged frame members, the top member havingspaced tubes along its sides slidably mounted on said tube legs wherebysaid frame can be moved crosswise of said base by movement of said tubeon said bar and lengthwise of said base by movement of said top framemember on said tube legs, said frame members being adapted to holdbetween them a sheet of stencil paper having an imprint to be duplicatedwhereby a sheet of paper disposed between said base and said frame mayhave the print of said stencil reproduced thereon by sliding an inkingpad on top of said stencil sheet, said first mentioned tube having twotelescoped parts and said frame being expandable transversely andlongitudinally for accommodating different size stencils, each of saidframe members having telescoped parts effecting said expansion.

10. A duplicating device comprising a base having sockets at its uppercorners, a U-shaped rod assets 7 having. vertical legs. in. said socketanda bar con nectingsais.legsranditraversing the upper marginofg'saidbase, andia frame hinged to said bar and haw/ting;E twesuperposed: hinged. frame: members:

saidl'frame members being adapted: to hold; be

tween them sheet. of stencil. paper.- having an: imprintte be duplicatedwhereby a sheet. ofpaper dispesed between said base and said frame mayhave. the print of said stencil reproduced-thereon by sliding, an inkingpad. on top of. said stencilsheet.

1,1.. A. duplicating device. com-prisingv a base havmg. sockets at? itsupper corners, a. U-shaped red having; vertical legs in said sockets anda barcennecting; said legsand; traversing the upper: maagir-ix of saidbase, and-a frame hinged to-said banandz having two superposed hinged.frame members, said frame members. being adapted to held between them asheet of stencil paper hav ing. an. imprint to. be duplicated whereby asheet of paper disposed. between said base and. said fnam smay have;the: print of said stencil repro' duced thereon by sliding an inkingmade en top ofssaid stencil. sheet,w said. hinge between. said firameand bar including tworight angle truni ing. an: imprint to be duplicatedwherebx asbeet of paper disposed between said base: and-said frame mayhave the print of said stencil repreduced thereon by sliding anv inkingpad on ton of. said stencil sheet, said; hinge between; said frame and.bar including two right angle 13111119: nions rigid with. said bar and.two lugs on. said! irarnemounted on said trunnions, saidtrunnions;facing in: the same; direction whereby said. lugs can be. slid thereonand thereoff. v

13. A- duplicating device. comprising a base; havin sockets at uppercorners; a U-shapedred having; vertical legsin said sockets: and a banconnecting. said legs andtraversing the upper;v margin: of said base; aslidehingeslidably and rotatably mounted on said bar and having, spacedtraight legs vextending. over said base, and a. frame disposed on; saidbase having two supkposed hinged frame members, the tap member; havingspaced, tubesv along its sidesv slida-bly; mounted on said tube legswhereby said frame can. be moved crosswise of saidbase by move ment ofsaid tube on said bar and lengthwise oi. saidbaseby movement ofsaidttopirame-member onsaid tube leg-s, said frame members being;

adapted.- tn held between them a sheet; of stencil, paper having; animprint: to be duplicated where by a sheet ei pa-perdisposed] betweensaid base ands-aidfra-me may have theprintrof said stenciL reproducedthereon by sliding an. inking pad on top of saidistencilsheet a pair ofmovable guides adinstably' mounted on: said: baseeby beltsv engag-- ing;parallel grooves farmed inv the bases 5- 4

